Published online by Cambridge University Press: 06 October 2014
Behavioural momentum refers to the tendency for reinforced behaviour to persist when conditions are altered. Research on persistence with pigeons as subjects has suggested that response rate under steady-state conditions and its persistence when conditions are altered are independent aspects of behaviour, with response rate determined by response-reinforcer contingencies and persistence determined by stimulus-reinforcer contingencies. These results have been replicated with humans in a natural setting, and may therefore be relevant to clinical practice. The following prescriptions are suggested by the research results: (a) To eliminate undesirable behaviour, it is not sufficient to reinforce alternative behaviour in the same setting because this may actually enhance persistence of the undesired response; change to a new setting may also be necessary; (b) to establish desirable behaviour, the behaviour should be reinforced frequently, and to make it persistent, both the therapeutic and natural environments should be highly correlated with reinforcement.